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Finding the Fourth Proportional to 28,783.62, 43,175.19 and 8,007.06

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Solution

The fourth proportional to 28,783.62, 43,175.19 and 8,007.06 is: 12,010.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,783.62 : 43,175.19 = 8,007.06 : x
  2. Step 2: Convert to fraction form
    28,783.62/43,175.19 = 8,007.06/x
  3. Step 3: Cross multiply
    28,783.62x = 43,175.19 × 8,007.06
  4. Step 4: Simplify right side
    28,783.62x = 345,706,336.84
  5. Step 5: Solve for x
    x = 345,706,336.84/28,783.62
  6. Step 6: Final answer
    x = 12,010.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.